Share my Work
You don´t need my permission to use my work. One of my central ideas is that the work should be available for free use. I have licensed it under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
Here is a summary of (and not a substitute for) the license.
You are free to:
Share — copy and redistribute the material in any medium or format
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
NonCommercial — You may not use the material for commercial purposes.
NoDerivatives — If you remix, transform, or build upon the material, you may not distribute the modified material (Exceptions: 1) English is my second language and you are allowed to correct grammatical errors. 2) You are allowed to translate the work into other languages than English).
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.